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Ø3/16 [4.76]
[23.02]
NPT
®
SERIES 659
PUSH-BUTTON TEMPERATURE TRANSMITTERS
Programmable, RTD, Thermistor or Thermocouple Input, In-Head Mounting
TYP 2 PLACES
Ø1-5/16
[41.67]
[33.32]
29/32
659 Transmitter Accessory A-709 Transmitter Enclosure
The Series 659 Push-Button Temperature Transmitters accept thermocouple (J, K,
T), RTD (Pt100Ω) or thermistor input and provide a linearized 4 to 20 mA output. The
transmitter is quickly ranged and calibrated by using a single on-board switch.
FEATURES/BENEFITS
• Push button calibration adjustment
• Reverse polarity protection
• Standard temperature sensor head enclosure mounting
• Sensor fault LED
APPLICATIONS
• Process applications where a 4 to 20 mA signal is required
MODEL CHART
Model Input
659TC-1
659RTD-1
659TH-1
Thermocouple (Type J, K, T)
3-wire (RTD Pt100)
Thermistor (2252Ω)
ACCESSORIES
Model Description
A-709 NEMA 4X Aluminum Transmitter Enclosure
SPECIFICATIONS
Input Range: Type J T/C: -328 to
2192°F (-200 to 1200°C); Type K T/C:
-328 to 2498°F (-200 to 1370°C); Type
T T/C: -328 to 752°F (-200 to 400°C);
Pt100 Ω RTD: -328 to 1562°F (-200 to
850°C); Thermistor: -13 to 257°F.
Accuracy: T/C models: ±0.04% FS.,
±0.04% of reading or ±0.5°C whichever
is greater; RTD: ±0.2°C ±0.1% of rdg;
Thermistor: ±0.25°F (±0.1°C).
Output: Linearized 4 to 20 mA, 2-wire
loop powered.
2-27/32
[72.23]
1/2
3-5/32
[80.12]
1-21/32
[42.07]
1-5/8
[41.28]
Sample Rate: 500 ms.
Loop Resistance: T/C: 700 Ω @
24 VDC; RTD: 800 Ω @ 24 VDC;
Thermistor: 24 VDC.
Output Thermal Drift: Zero: 0.2µA/°C;
Span: 0.5µA/°C.
Temperature Limits: Ambient: -4 to
158°F (-20 to 70°C), 80% RH max.
Burnout: Upscale 22 mA.
Weight: 0.92 oz (26 g).
Agency Approvals: CE.
TEMPERATURE
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