657T, 658T: Single or Dual Channel, RTD Input, Loop-powered Transmitter
Please sign in or register to see model options and to add products to your cart.
Product short description:
- 100 ohm Pt, 120 ohm Ni, 10 ohm Cu (selectable type) input
- 4 to 20mA DC output
- 12-50V DC from output loop power
- DIP-switch configuration, push-button calibration
These units accept universal RTD or resistance input signals and output proportional DC current signals. The output can also be linearized to the input sensor signal.
657T, 658T: Single or Dual Channel, RTD Input, Loop-powered Transmitter Description
These units accept universal RTD or resistance input signals and output proportional DC current signals. The output can also be linearized to the input sensor signal. Single-channel 657T and dual-channel 658T units are ideal for panel shops and end-users who require a high-density signal conditioner that can accommodate a broad range of temperature measurement applications.
Configuration is fast and easy. First, you select the input type with a simple DIP switch. Then, you set your zero/full-scale output values using a toggle switch on the front panel to increase or decrease the signal until you read the desired output value on your voltmeter. The toggles make it easy to calibrate a normal (proportional) or reverse-acting (inverse) response in seconds. After completing the calibration, just press the mode/set toggle and your configuration settings are safely saved to nonvolatile memory.
Input Ranges
RTD: 100 ohm Pt, 120 ohm Ni, 10 ohm Cu.
Resistance: 0 to 500 ohms.
Output Range: 4 to 20mA DC.
Power Requirement: 12 to 50V DC (loop-powered). Two-wire transmitter.
Approvals: UL, cUL listed. Class I; Division 2; Groups A, B, C, D.
Performance Specifications
General Input
Analog to Digital Converter (ADC): 16-bit S-D A/D converter.
Noise Rejection
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 100dB @ 60Hz.
Input Overvoltage Protection: Bipolar Transient Voltage Suppressors (TVS).
Input Impedance: 400K ohm at 10mV span; input current, ±25nA, typical (±30nA, max.).
RTD Input
RTD Input Ranges: 100 Ohms, 120W Ni, or 10W Cu; user-configured.
RTD      °C Range (°F Range)          Accuracy
Pt1       -200 to 850°C (-328 to 1562°F)    ±0.25°C
Pt2       -200 to 850°C (-328 to 1562°F)     ±0.25°C
Ni        -80 to 320°C (-112 to 608°F)       ±0.25°C
Cu      – 200 to 260°C (-328 to 500°F)      ±1.00°C
Alpha: Pt1 (a = 1.3850), Pt2 (a = 1.3911), Ni a = 1.6720), Cu (a = 1.4272)
2, 3, or 4-wire configurations supported. Module provides sensor excitation, linearization, lead-wire compensation, and sensor break detection.
RTD Excitation Current: 0.5mA DC typical, all types.
RTD Lead-Wire Compensation: 25 ohms per lead.
RTD Break Detection: Configurable for either upscale or downscale.
Resistance Input
Resistance Input Range: 0 to 500 ohms.
Resistance Accuracy: ±0.05 ohms.
Output
Output Range: Range: 4 to 20mA DC, 3.8 to 22mA range typical.
Output Compliance: Rload = (Vsupply – 12V) / 0.02A.
Output Response Control: Proportional/inverse selectable.
Ambient Temperature Effect: Better than ±0.006% of input span per °C or ±100ppm/°C, whichever is greater.
Output Response Time (for input step change): 700mS typical to 98% of final output value.
Environmental
Ambient Temperature
Operating: -25 to 75°C (-13 to 167°F).
Storage: -40 to 85°C (-40 to 185°F).
Relative Humidity: 5 to 95%, non-condensing.
Power Requirement: 12 to 50V DC @ 25mA for each output channel.
Isolation: Not isolated.
Radiated Field Immunity (RFI): Complies with EN61000-4-3 Level 3 and EN50082-1.
Electromagnetic Field Immunity (EMI): Less than ±0.25% of output span effect.
Electrical Fast Transient (EFT): Complies with EN61000-4-4 Level 3 and EN50082-1.
Electrostatic Discharge (ESD): Complies with EN61000-4-2 Level 3 and EN50082-1.
Radiated Emissions: Meets or exceeds EN50081-1 for Class B equipment.
Approvals: UL & cUL listed. Hazardous Locations: Class I: Div. 2; Groups A, B, C, D.
Physical
Enclosure: Case: Self-extinguishing NYLON type 6.6 polyamide thermoplastic UL94 V-2 NEMA Type 1 enclosure.
Connectors (Removable Terminal Blocks): Wire Range: AWG #12-24.
Printed Circuit Boards: Military grade FR-4 epoxy glass circuit board.
Dimensions
1.05W x 4.68H x 4.35D inches, 26.7W x 118.9H x 110.5D millimeters.
Shipping Weight: 1 pound (0.45 Kg) packed.
- Selectable RTD input types offer flexibility to fit many applications
- DIP switch-configuration and self-ranging technologies speed installation without pots, jumpers, or software
- Toggle-switch calibration simplifies field adjustments for faster and easier maintenance
- Configuration lockout safety feature prevents tampering and accidental changes
- Reverse-acting output capability enables inverse proportional control signals
- Dual channel model saves space and reduces equipment costs
- High-resolution sigma-delta A/D converters deliver superior accuracy for reliable measurements
- Lead break detection supports upscale or downscale fail-safe mode
- Operating temperature range: -25 to 75°C (-13 to 167°F)
-
PS5R: Slim Line Power Supplies
- 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
- Universal Input (85-264V AC / 100-370V DC)
- Lightweight and compact size
Select options
Additional information
| Weight | 8 oz |
|---|---|
| Dimensions | 1.1 × 5 × 4.5 in |
| Part Number | 657T-0600: Single channel, 657T-0600-C: Single channel, with factory calibration. Specify ranges at checkout, 658T-0600: Dual channel, 658T-0600-C: Dual channel, with factory calibration. Specify ranges at checkout |
| Product Series | 600 Series |
-
Description
657T, 658T: Single or Dual Channel, RTD Input, Loop-powered Transmitter Description
These units accept universal RTD or resistance input signals and output proportional DC current signals. The output can also be linearized to the input sensor signal. Single-channel 657T and dual-channel 658T units are ideal for panel shops and end-users who require a high-density signal conditioner that can accommodate a broad range of temperature measurement applications.
Configuration is fast and easy. First, you select the input type with a simple DIP switch. Then, you set your zero/full-scale output values using a toggle switch on the front panel to increase or decrease the signal until you read the desired output value on your voltmeter. The toggles make it easy to calibrate a normal (proportional) or reverse-acting (inverse) response in seconds. After completing the calibration, just press the mode/set toggle and your configuration settings are safely saved to nonvolatile memory.
Input Ranges
RTD: 100 ohm Pt, 120 ohm Ni, 10 ohm Cu.
Resistance: 0 to 500 ohms.Output Range: 4 to 20mA DC.
Power Requirement: 12 to 50V DC (loop-powered). Two-wire transmitter.
Approvals: UL, cUL listed. Class I; Division 2; Groups A, B, C, D.
Performance Specifications
General Input
Analog to Digital Converter (ADC): 16-bit S-D A/D converter.
Noise Rejection
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 100dB @ 60Hz.Input Overvoltage Protection: Bipolar Transient Voltage Suppressors (TVS).
Input Impedance: 400K ohm at 10mV span; input current, ±25nA, typical (±30nA, max.).
RTD Input
RTD Input Ranges: 100 Ohms, 120W Ni, or 10W Cu; user-configured.
RTD      °C Range (°F Range)          Accuracy
Pt1       -200 to 850°C (-328 to 1562°F)    ±0.25°C
Pt2       -200 to 850°C (-328 to 1562°F)     ±0.25°C
Ni        -80 to 320°C (-112 to 608°F)       ±0.25°C
Cu      – 200 to 260°C (-328 to 500°F)      ±1.00°C
Alpha: Pt1 (a = 1.3850), Pt2 (a = 1.3911), Ni a = 1.6720), Cu (a = 1.4272)2, 3, or 4-wire configurations supported. Module provides sensor excitation, linearization, lead-wire compensation, and sensor break detection.
RTD Excitation Current: 0.5mA DC typical, all types.
RTD Lead-Wire Compensation: 25 ohms per lead.
RTD Break Detection: Configurable for either upscale or downscale.
Resistance Input
Resistance Input Range: 0 to 500 ohms.
Resistance Accuracy: ±0.05 ohms.
Output
Output Range: Range: 4 to 20mA DC, 3.8 to 22mA range typical.
Output Compliance: Rload = (Vsupply – 12V) / 0.02A.
Output Response Control: Proportional/inverse selectable.
Ambient Temperature Effect: Better than ±0.006% of input span per °C or ±100ppm/°C, whichever is greater.
Output Response Time (for input step change): 700mS typical to 98% of final output value.
Environmental
Ambient Temperature
Operating: -25 to 75°C (-13 to 167°F).
Storage: -40 to 85°C (-40 to 185°F).Relative Humidity: 5 to 95%, non-condensing.
Power Requirement: 12 to 50V DC @ 25mA for each output channel.
Isolation: Not isolated.
Radiated Field Immunity (RFI): Complies with EN61000-4-3 Level 3 and EN50082-1.
Electromagnetic Field Immunity (EMI): Less than ±0.25% of output span effect.
Electrical Fast Transient (EFT): Complies with EN61000-4-4 Level 3 and EN50082-1.
Electrostatic Discharge (ESD): Complies with EN61000-4-2 Level 3 and EN50082-1.
Radiated Emissions: Meets or exceeds EN50081-1 for Class B equipment.
Approvals: UL & cUL listed. Hazardous Locations: Class I: Div. 2; Groups A, B, C, D.
Physical
Enclosure: Case: Self-extinguishing NYLON type 6.6 polyamide thermoplastic UL94 V-2 NEMA Type 1 enclosure.
Connectors (Removable Terminal Blocks): Wire Range: AWG #12-24.
Printed Circuit Boards: Military grade FR-4 epoxy glass circuit board.
Dimensions
1.05W x 4.68H x 4.35D inches, 26.7W x 118.9H x 110.5D millimeters.Shipping Weight: 1 pound (0.45 Kg) packed.
-
Features & Benefits
- Selectable RTD input types offer flexibility to fit many applications
- DIP switch-configuration and self-ranging technologies speed installation without pots, jumpers, or software
- Toggle-switch calibration simplifies field adjustments for faster and easier maintenance
- Configuration lockout safety feature prevents tampering and accidental changes
- Reverse-acting output capability enables inverse proportional control signals
- Dual channel model saves space and reduces equipment costs
- High-resolution sigma-delta A/D converters deliver superior accuracy for reliable measurements
- Lead break detection supports upscale or downscale fail-safe mode
- Operating temperature range: -25 to 75°C (-13 to 167°F)
-
Tech Papers
The Best Temperature Sensor for Process Control: Thermocouple vs RTD - 8500918 (Log in to view the file)Criteria for Temperature Selection of T/C and RTD Sensor Types This is part three of a comprehensive three-part series that provides information for choosing an industrial temperature sensor from Thermocouple (T/C) and Resistance Temperature Detector (RTD) sensor types. Thermocouple vs RTD Many users simply look to fill the basic needs of their application and do...How to use RTDs for Temperature Measurement - 8500917 (Log in to view the file)Criteria for Temperature Selection of T/C and RTD Sensor Types This is part two of a comprehensive three-part series that provides information for choosing an industrial temperature sensor from Thermocouple (T/C) and Resistance Temperature Detector (RTD) sensor types. The Basics of Temperature Measurement Using RTDs A Resistance Temperature Detector (RTD) is a passive circuit element... -
Specs & Data Sheets
-
Accessories
-
PS5R: Slim Line Power Supplies
- 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
- Universal Input (85-264V AC / 100-370V DC)
- Lightweight and compact size
Select options
-
-
Additional information
Additional information
Weight 8 oz Dimensions 1.1 × 5 × 4.5 in Part Number 657T-0600: Single channel, 657T-0600-C: Single channel, with factory calibration. Specify ranges at checkout, 658T-0600: Dual channel, 658T-0600-C: Dual channel, with factory calibration. Specify ranges at checkout
Product Series 600 Series
Please login to submit this form.