ATMi Modules
22
HPC50 Series Operation Manual
ATMi Modules
TEMPERATURE MEASUREMENT
Accuracy: . . . . . . . . . . . . . . . . . . . . . . . . ±(0.015% of rdg) + 0.02 Ohm
Range: . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 400 Ohms
Resolution: . . . . . . . . . . . . . . . . . . . . . . 0.01 on all scales
Units: . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C, K, °F, R, Ω
TCR: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.003850 Ω/Ω/°C (IEC 60751)
Wiring: . . . . . . . . . . . . . . . . . . . . . . . . . . 4-wire support
Includes all effects of linearity, hysteresis, repeatability, temperature,
and stability for one year .
Combine with part number 127387 for a -45 to 150° C temperature
sensor . Contact us to add a calibration certificate .
OUTPUT
Temperature Resolution . . . . . . . . . 0.01
Display Update . . . . . . . . . . . . . . . . . . up to 10 per second
Temperature resolution and display update are the maximum values
available . The resolution of your Crystal device may be different .
COMMUNICATION
Connector . . . . . . . . . . . . . . . . . . . . . . . 6-pin LEMO
Serial . . . . . . . . . . . . . . . . . . . . . . . . . . . . RS-422, 9600 baud, 8 data,
no parity, 1 stop
Protocol . . . . . . . . . . . . . . . . . . . . . . . . . ASCII command language
OPERATING TEMPERATURE
Temperature Range . . . . . . . . . . . . . . -20 to 50° C (-4 to 122° F)
< 95% RH, non-condensing . No change in accuracy over operating
temperature range . Gauge must be zeroed to achieve rated
specification .
Applies to all modules .
STORAGE TEMPERATURE
Temperature Range . . . . . . . . . . . . . . -40 to 75° C (-40 to 167° F)
ENCLOSURE
Dimensions . . . . . . . . . . . . . . . . . . . . . . 2.5 x 1.1 in (63.3 x 27.0 mm)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . 0.31 lbs (141.0 g)
6 PIN CONNECTION
FOR HPC50 SERIES CABLE
6 PIN CONNECTION
FOR REMOTE
TEMPERATURE
PROBE
63.3
(2.49)
Ø 27
(1.06)
Class A
Class B
Temperature
°C
HPC50/ATMi
Uncertainty
Class A
Uncertainty
HPC50/ATMi + Class A
Uncertainty
Class B
Uncertainty
HPC50/ATMi + Class B
Uncertainty
±Ω
±°C
±Ω
±°C
±Ω
±°C
±Ω
±°C
±Ω
±°C
-200
0.02
0.05
0.24
0.55
0.24
0.55
0.56
1.30
0.56
1.30
-40
0.03
0.08
0.09
0.23
0.10
0.24
0.20
0.50
0.20
0.51
0
0.04
0.09
0.06
0.15
0.07
0.17
0.12
0.30
0.12
0.31
50
0.04
0.10
0.10
0.25
0.10
0.27
0.21
0.55
0.22
0.56
100
0.04
0.11
0.13
0.35
0.14
0.37
0.30
0.80
0.31
0.81
150
0.04
0.12
0.17
0.45
0.17
0.46
0.39
1.05
0.39
1.06
200
0.05
0.13
0.20
0.55
0.21
0.56
0.48
1.30
0.48
1.31
400
0.06
0.17
0.33
0.95
0.33
0.96
0.79
2.30
0.79
2.31
600
0.07
0.21
0.43
1.35
0.44
1.37
1.06
3.30
1.06
3.31
800
0.08
0.25
0.52
1.75
0.53
1.77
1.28
4.30
1.28
4.31
The proper selection of the RTD sensing element is very important as the error associated with this device is the majority of the overall system measurement uncertainty . IEC 751 is the
standard that defines the temperature versus resistance for 100Ω, 0 .00385 Ω/Ω/°C platinum RTDs . IEC 751 defines two classes of RTDs: Class A and B . Class A RTDs operate over the -200 to
630°C range versus -200 to 800°C for the Class B elements . For example, the Class A uncertainty is about half that of the Class B elements as illustrated in the following table .
