Siemens FUS1010 Manual de usuario Pagina 144

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3-16
1010NFM-3J
Section 3
The 991TW insert sensors are designed to be used in pipes equipped with Thermowells. These are
spring-loaded, 1/4” diameter sensors with 1/2” NPT integral connection heads, available in several
lengths to accommodate a range of pipe sizes. Thermowells for new installations are available from
Alloy Engineering Company in Bridgeport, Connecticut.
3.2.1 WIRING TEMPERATURE SENSOR TO THE ANALOG INPUT MODULE
WARNING: Set flowmeter and instrumentation power to OFF when inserting or removing the
Analog Input Module, or when making connections to TB1, TB2, TB3, and TB4.
z Open the 1010 NEMA flowmeter top cover by releasing the cover latch.
z Place the power switch to the OFF position.
z Loosen the captive thumbscrew securing the Access Cover and remove Access Cover.
z Using a flat-blade screwdriver, remove four captive screws securing the I/O board.
z Carefully remove the I/O board and set it aside.
1010N Single Channel Temperature Sensor Inputs
TOP VIEW
SHORT TERMINALS 1 AND 4
SINCE T2 IS NOT BEING USED
- see note below.
TO SENSOR
NOTE: If this meter is using only one RTD
temperature sensor, short terminals
1 and 4 of TB2 with a jumper wire to
complete the dual RTD current loop.
Refer to paragraph 3.2.1 step 3
on next page.
Access Cover
Screw
1010N
Power Switich
Latch
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