Specification 3-1 To; Specification List - Hitachi HIDIC EH-150 Instruction Manual

3. Specification

3.1 Specification list

Table 3.1 shows the specifications of EH-PT4.
Item
Type
Resistance temperature detective
Temperature conversion data
-20 to + 40 ° C (Pt100)
Accuracy
-50 to + 400 ° C (Pt100)
(Note 1)
-50 to + 400 ° C (Pt1000)
Temperature measurement range
Number of channels
Conversion time
Insulation Between channel and PC
Between channels
External power supply
Internal current consumption
(5 V DC)
External wiring resistance
External wiring
Additional function
Error detection
-20 to +40 ° C (Pt100)
-50 to +400 ° C (Pt100/ Pt1000)
Processing in case of disconnection
(Note 2)
Note 1: The above accuracies are the values when 10 minutes after power ON. Just after power ON, the
values may increase slightly. Because a PT100/1000 has a potential error.
Note 2: This is the case when the current terminal wiring is broken. In case the voltage terminal wiring is broken,
the data becomes unspecified. ("H" of "H7FFF" means the following data is hexadecimal.)
3.Specification
Table 3.1 Specification
Platinum resistance thermometer element Pt100
Platinum resistance thermometer element Pt1000
(In normal state the lowest two bits are always "0")
-20 to +40 ° C / -50 to +400 ° C
(2 mA constant current method)
24V DC ± 10% 100 mA max.
H7FFF is outputted at -25 ° C or less, or at +45 ° C or higher
H7FFF is outputted at -60 ° C or less, or at +410 ° C or higher
H7FFF is outputted to channel.
3-1
Specification
EH-PT4
15 bits with sign
± 0.5 ° C
± 3 ° C
± 6 ° C
4 channels
Apprx. 1s / 4 channels
Photocoupler insulation
Non-insulation
200 mA max.
400 ohm max. / channel
Shielded wire
Linearization
(IEC 751)