7. CONFIGURATION
Type-J Thermocouple
oF , oC
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The INPUT and RANGE of the 405000 transmitter can be reconfigured
by opening or soldering internal jumpers (Fig. 6). J-type thermocouples
(Fe-Const) have 4 ranges, K-type thermocouples (NiCr-NiAl) have 3
ranges, and Pt 100 RTDs have 40 ranges. See Table of ranges in next
section.
32/390, 0/200
32/750, 0/400
32/1110, 0/600
32/1470, 0/800
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Select Thermocouple or RTD input
1) Remove the 405000 cover (Fig. 4), to access the printed circuit.
2) Remove the printed circuit from the housing by connecting two
wires to terminals 4 & 5, removing the circuit board removal screw,
and pulling the two wires to free the circuit.
Type-K Thermocouple
oF , oC
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32/1110, 0/600
32/1470, 0/800
32/2190, 0/1200
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3) Select RTD or Thermocouple via Jumper No. 2 (Fig. 6), located
between the terminals. For RTD (Pt 100) inputs, open Jumper No.2
and for Thermocouple (T/C) inputs close Jumper No.2
4) For specific range configurations and Jumper locations, refer to the
Table in the next section noting which jumpers are to be opened or
soldered. A black dot indicates that that jumper must be soldered
(refer to Fig. 6 below for Jumper locations).
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8. CALIBRATION
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1) Apply the minimum input for the desired range to the appropriate
input terminals (depending upon the input type). Adjust the ZERO
potentiometer until 4.00 mA appears on output terminals 4 and 5.
2) Apply the maximum input for the desired range to the appropriate
input terminals (depending upon the input type). Adjust the SPAN
potentiometer until 20.00 mA appears on output terminals 4 and 5.
3) Repeat steps 1 & 2 until readings are within the desired accuracy.
4) Apply intermediate range values to check linearity.
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5) Mark the transmitter’s label with the sensor type, range and the
configuration date.
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Measurement Range \ Solder Bridge Table
RTD Pt 100 ohms
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Fig. 6
-150/-60, -100/-50
-150/32, -100/0
-150/120, -100/50
-150/210, -100/100
-150/300, -100/150
-150/390, -100/200
-150/480, -100/250
-150/570, -100/300
oF , oC
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9. CALIBRATION / REPAIR SERVICES
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Extech offers complete repair and calibration services for all of the
products we sell. For periodic calibration, NIST certification or repair
of any Extech product, call customer service for details on services
available. Extech recommends that calibration be performed on an
annual basis to insure calibration integrity.
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-60/32, -50/0
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-60/120, -50/50
-60/210, -50/100
-60/300, -50/150
-60/390, -50/200
-60/480, -50/250
-60/570, -50/300
-60/660, -50/350
oF , oC
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10. WARRANTY
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of
defects in parts and workmanship for one year from date of shipment (a six month
limited warranty applies on sensors and cables). If it should become necessary to
return the instrument for service during or beyond the warranty period, contact the
Customer Service Department at (781) 890-7440 for authorization. A Return
Authorization (RA) number must be issued before any product is returned to
Extech. The sender is responsible for shipping charges, freight, insurance and
proper packaging to prevent damage in transit.
This warranty does not apply to defects resulting from action of the user such as
misuse, improper wiring, operation outside of specification, improper maintenance
or repair, or unauthorized modification. Extech specifically disclaims any implied
warranties or merchantability or fitness for a specific purpose and will not be liable
for any direct, indirect, incidental or consequential damages. Extech's total liability
is limited to repair or replacement of the product.
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32/120, 0/50
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32/210, 0/100
32/300, 0/150
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32/390, 0/200
32/480, 0/250
32/570, 0/300
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32/660, 0/350
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32/750, 0/400
oF , oC
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210/300, 100/150
210/390, 100/200
210/480, 100/250
210/570, 100/300
210/660, 100/350
210/750, 100/400
210/840, 100/450
210/930, 100/500
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The warranty set forth above is inclusive and no other warranty, whether written or
oral, is expressed or implied.
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405000
Ver. 1.2 5/03
EXTECH [ EXTECH INSTRUMENTS CORPORATION. ]
