100/180 mm PAPERLESS GRAPHIC RECORDER: USER GUIDE
HA028910
Issue 13 Sep 16
User Guide
Page 382
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
±38mV; ±150mV; ±1Volt; ± 20 Volts
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 confi gurable
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; 23.74 Volts 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
channel to ground (basic insulation)
Dielectric strength Channel to ground: 1500Vac for 1 minute.
Channel to channel:
2500Vac for 1 minute
Insulation resistance
>10MΩ at 500V dc
Input impedance
20V range:
65.3kΩ
Other ranges:
>10MΩ
Overvoltage protection
50V peak (150V with attenuator)
Open circuit detection (applies only to ± 38mV and ± 150mV ranges).
Detection current:
± 57nA max
Recognition time:
500mSec
Minimum break resistance:
10MΩ
Long term drift (typical)
Better than 0.03% of reading or 30µV (whichever is greater) over a three month period.
DC input ranges
Shunt
Externally mounted resistor modules
Additional error due to shunt
0.1% of input
Performance
See table
Note: The table above applies to recorders with status level E7 or above (June 2007). For instru-
ments prior to this, see the table in ‘
Previous instruments
’ later in Annex A.
*WARNING
For portable case instruments only:
All I/O connections must be Low Voltage (maximum 33V ac RMS, 46.7V ac peak or 70Vdc) unless
the integrity of the instrument safety earth is maintained for as long as the I/O is connected to the
recorder.
For small frame recorders only:
For 6 input recorders, up to four option boards may be fi tted.
For 12 input recorders up to four option boards may be fi tted
For 18 channel recorders up to two option boards may be fi tted.
Low
High
Typical error
Maximum error
Worst case temperature
Range
Range
(Instrument at 20 deg C)
(Instrument at 20 deg C)
performance
-38 mV
38 mV
1.4
µ
V
0.013% input + 0.031% range 0.030% input + 0.052% range 25ppm of input per deg C
-150 mV
150 mV
5.5
µ
V
0.013% input + 0.028% range 0.029% input + 0.039% range 25ppm of input per deg C
-1 V
1 V
37
µ
V
0.013% input + 0.024% range 0.029% input + 0.029% range 25ppm of input per deg C
-20 V
20 V
720
µ
V
0.075% input + 0.027% range 0.393% input + 0.033% range 388ppm of input per deg C
Resolution
