Especially for those who require a economical transmitter with high accuracy we have developed the ALM series of transmitters. This series is limited to four different models, yet covering the entire range of MilliVolts, Pt100 and Thermocouples K, J and T. You will find the transmitters of the ALM-series easy to install and you will find an amazing accuracy on all models. Therefore, the ALM-series delivers you great value for money.
ALM48 features • 2-wire railmount transmitter • Analogue transmitter • Available for Pt100 (RTD), thermocouple K,J or T or mV input • Free scalable • High accuracy (typical 0.2%) • Optional zero shift • Temperature linear output (Pt100 version) • Voltage linear output (T/C version) • 5 Year warranty
SPECIFICATIONS
Power supply
14 – 40 VDC
Polarity protected
Yes
Power supply effect
0.002%/V
Output
4 – 20 mA
Load capability
(V[bat] – 14 V) / 20 mA
Sensor burn out
Upscale (max. 35 mA)
Zero drift
± 0.025%/°C
Span drift
± 0.010%/°C
Ambient Operating Temp.
-20...+80°C
Ingress Protection
IP30
Storage Temperature
-40...+100°C
Housing Material
Polyamide
Housing Dimension W x H x D
22.5 x 79 x 85.5 mm (0.89” x 3.11” x 3.37”)
Pt100
Range
-50 to +800°C
Zero adjustment Pt100
-50 to +50°C
Span adjustment Pt100
50 to 800°C
Optional zero shift Pt100
-50 to +350°C
Linearization
0.1%
Sensor lead effect
0.03°C/Ohm
Max. sensor line resistance
250 Ohm
Thermocouple
Range T/C K
0 to 1200°C
Range T/C J
0 to 900°C
Range T/C T
0 to 400°C
Zero adjustment T/C
-25 to +50°C
Span adjustment T/C
T/C K: 150 to 1200°C T/C J: 150 to 600°C T/C T: 150 to 400°C
