100/180 MM GRAPHICS RECORDER: USER GUIDE
HA261742
Issue 16 Nov 04
User Guide
Page 124
TECHNICAL SPECIFICATION (Universal input board)
General*
Termination
Edge connector/terminal block
Max. number of inputs
Small frame:
18 (three 6-input boards)
Large frame:
48 (eight 6-input boards)
Input ranges
-8 to +38mV; -30 to +150mV; -0.2 to +1Volt; -2 to + 10Volts (0 to 10 Volts for channels 1, 7, 13 and 19)
Input types
Dc volts, dc millivolts, dc milliamps, (with external shunt), thermocouple, 2/3 wire resistance temperature detector
(RTD), Ohms, Contact closure (not channels 1, 7, 13,19, 25, 31, 37, 43) (Minimum contact closure = 60msec.)
Input type mix
Freely configurable
Sample rate
See 'Update information' above
Noise rejection (48 to 62Hz)
Common mode:
>140dB (Channel to channel and channel to ground)
Series mode:
>60dB
Maximum common mode voltage
250Volts continuous
Maximum series mode voltage
45mV at lowest range; 12Volts peak at highest range
Isolation (dc to 65Hz; BS EN61010)
Installation category II; Pollution degree 2
300V RMS or dc channel to channel (double insulation), channel to common electronics (double insulation) and chan-
nel to ground (basic insulation)
Dielectric strength Channel to ground:
1350Vac for 1 minute.
Channel to channel:
2300Vac for 1 minute
Insulation resistance
>10M
Ω
at 500V dc
Input impedance
10V range:
68.8k
Ω
Other ranges:
>10M
Ω
Overvoltage protection
50V peak (150V with attenuator)
Open circuit detection
±
57nA max
Recognition time:
500mSec
Minimum break resistance:
10M
Ω
DC input ranges
Shunt
Externally mounted resistor modules
Additional error due to shunt
0.1% of input
Performance
See table
Low
Range
-8mV
- 30mV
-0.2V
-2V
High
Range
+38mV
150mV
1Volt
10 Volts
Resolu-
tion
1.4 V
5.5 V
37 V
370 V
Maximum error
(Instrument at 20 C)
0.085% input + 0.073% range
0.084% input + 0.037% range
0.275% input + 0.040% range
Worst case temperature
performance
(Instrument at 20 C)
80ppm of input per deg C
80ppm of input per deg C
80ppm of input per deg C
272ppm of input per deg C
0.084% input + 0.053% range
* WARNING
For portable case instruments only:
All I/O connections must be SELV (33V ac RMS, 46,7V ac peak, 70Vdc) unless the integrity of the instru-
ment safety earth is maintained for as long as the I/O is connected to the recorder.
For small frame recorders only:
For 6 or12 input recorders, up to four option boards may be fitted.
For 18 channel recorders up to two option boards may be fitted.