7SI DIN Compact Digital Indicator |
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Supply Voltage: |
100-240 Vac (+10%, -15%), 50/60
Hz |
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or 24 Vac/Vdc (±10%) |
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Operating Ambient: |
0-50°C, 20-85% RH
non-condensing |
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Inputs: |
T/C Types B, C, D, E, G, L, J, K, N, |
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Platinel II, R, S, T and U
(°C, °F); |
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Pt 100 3W RTD (°C, °F) Ranges: |
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mAdc, mVdc, Vdc |
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Logic
Input: |
for Alarm Acknowledgement, requires contact rated
at 0.5 mA, 5 Vdc minimum |
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Output Ratings: |
Output 1: Relay, 3A/250V, SPDT,
Resistive |
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Direct or Reverse operation |
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Output 2: (Optional) Relay,
2A/250V, SPST, NO, Resistive |
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Direct or Reverse operation |
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Serial Comms: |
EIA RS-485 Modbus®,
JBUS |
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Mounting: |
Panel Mount |
| Thermocouple and RTD Input Range Table |
| Input Type |
°C Range |
°F Range |
| TC B |
0 to 1820 |
32 to 3300 |
| TC C |
0 to 2300 |
0 to 4170 |
| TC D |
0 to 2300 |
0 to 4170 |
| TC E |
-100 to 800 |
-150 to
1470 |
| TC G |
0 to 2300 |
0 to 1470 |
| TC L |
-100 to 900 |
-150 to
1650 |
| TC J |
-100 to 1000 |
-150 to 1830 |
| TC K |
-100 to
1370 |
-150 to
2500 |
| TC N |
-100 to 1400 |
-150 to 2550 |
| TC Platinel II |
-100 to
1400 |
-150 to
2550 |
| TC R |
-50 to 1760 |
-60 to 3200 |
| TC S |
-50 to 1760 |
-60 to 3200 |
| TC T |
-200 to 400 |
-330 to 750 |
| TC U |
-200 to 600 |
-330 to
1110 |
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Alarm Standby Function
The
7SI can be programmed with an alarm masking function (Alarm standby), which
puts the alarm in a standby condition during instrument powerup, when process
low alarms are subject to false activation. Once the low alarm threshold is
traversed for the first time the instrument reverts to standard operation.
Data Memory Function
The 7SI
also has a “data memory” function which is enabled at powerup. It is
able to store in memory the minimum and maximum measured value, which, by
pushbutton or serial link, can be displayed on the front panel. This function
can also be reset by pushbutton or link, deleting the old values and starting a
new memorization period. |
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