This product is covered by ACI's Five (5) Year Limited Warranty. Learn more
Product overview
Transmitter w/ 100 Ohm RTD, Low Temperature Bullet Probe, 1", 316SS, 8', 4-20mA Output
Application
- Roof Top Units
- Discharge Air/Supply/Return/Mixed Air Duct Temperature
- Remote Temperature Sensing
Product specifications
Transmitter Supply Voltage | Supply Current:
+8.5 to 32 VDC (Reverse Polarity Protected) | 25 mA minimum
250 Ohm Load: +13.5 to 32 VDC | 500 Ohm Load: +18.5 to 32 VDC
Maximum Load Resistance:
Terminal Voltage - 8.5 V | 0.020 A | (775 Ohms @ 24 VDC)
Output Signals:
Current: 4-20 mA (2-Wire Loop Powered) | Voltage: 1-5 VDC or 2-10 VDC (3-Wires)
TT Calibrated Accuracy | Linearity:
Temp. Spans < 500ºF (260ºC): +/- 0.2% | Temp. Spans > 500ºF (260ºC): +/- 0.5%
Note1: Transmitter’s calibrated at 71ºF (22ºC) nominal
Thermal Drift:
Temp. Spans < 100ºF (38ºC): +/- 0.04%/ºF | Temp. Spans > 100ºF (38ºC): +/- 0.02%
Note2: Temperature Drift is referenced to 71ºF nominal calibration temperature
TTM100/TTM1K NIST Certification Points:
3 Point NIST: 20%, 50% & 80% of span | 5 Point NIST: 20%, 35%, 50%, 65%, 80% of span
TT Warm Up Time | Warm Up Drift:
10 Minutes | +/- 0.1%
Operating TT Temperature Range:
-40ºF (-40ºC) to 185ºF (85ºC)
Operating Humidity Range:
0 to 95%, non-condensing
Calibrated Temperature Spans:
Minimum Temp. Span: 50ºF (28ºC) | Maximum Temp. Span: 1000ºF (538ºC)
Matched Calibrated Temperature Spans (A/TTM models) Range:
-45 to 155ºC (-49 to 311ºF)
Connections | Wire Size:
Screw Terminal Blocks (Polarity Sensitive) | 16 AWG (1.31 mm2) to 26 AWG (0.129 mm2)
Terminal Block Torque Rating:
0.5 Nm nominal
Sensor Type | Sensor Curve:
Platinum RTD | Linear, PTC (Positive Temperature Coefficient)
Platinum RTD (PTC) | Number Wires (Wire Colors):
Three Conductors (White and Two Red Wires); Polarity Sensitive (Red wires tied together)
Platinum RTD Output @ 32°F (0°C):
A/TT/TTM100-LT-BP Series: 100 Ohms nominal | A/TT/TTM1K-LT-BP Series: 1000 Ohms nominal
Platinum RTD Tolerance Class:
Class B | Accuracy Formula: +/- ºC = (+/- 0.30ºC + (0.005 x |t|))
-200°C (-328°F): +/- 1.30°C (+/- 2.43°F) | 0°C (-32°F): +/- 0.30°C (+/- 0.54°F)
Platinum RTD Response Time (63% Step Change):
A/TT/TTM100-LT-BP Series: In still air: 3:40 (Min:Sec) In water: 19 (Sec)
A/TT/TTM1K-LT-BP Series: In still air: 3:50 (Min:Sec) In water: 22 (Sec)
Din Standard | Temperature Coeffcient:
DIN EN 60751 (IEC 751) | 3850 ppm / ºC |
Platinum RTD Stability:
< 0.04% @ 1000 hours @ 400ºC (752ºF)
Sensor Operating Temperature Range:
-198 to 150ºC (-324 to 302ºF)
Enclosure Specifications (Material, Flammability, Temperature, NEMA/IP Rating):
“-GD” Enclosure: -40 to 121ºC (-40 to 250ºF); Galvanized Steel; NEMA 1 (IP10)
“-BB” Enclosure: Aluminum, -40 to 121ºC (-40 to 250ºF), Plenum Rated, NEMA 3R (IP 14)
Storage Temperature Range:
-40 to 80ºC (-40 to 176ºF)
Probe Material | Length | Diameter:
316 Stainless Steel | 1.0” (25.4 mm) | 0.25” (6.35 mm) nominal
Lead Length | Conductor Size:
8’ (2.44 m) | 22 AWG
Lead Wire Insulation | Conductor Material:
Teflon | Silver Plated Copper
Agency Approvals:
RoHS, WEEE
