Servomex DF-310E, Руководство оператора

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Connecting to External Devices DF-310E 53
SAMPLE INLET
1/4" COMPRESSION
SAMPLE OUTLET
1/4" COMPRESSION
ELECTROLYTE MAINTENANCE ACCESS
.75 NPT ELECTRICAL CONNECTION
TO CONTROL ENCLOSURE
FLOWMETER
WITH INTEGRAL
CONTROL VALVE
(OPTIONAL)
5.25 [133.35]
3.00 [76.20]
7.25 [184.15]
2.50 [63.50]
Ø.44 [Ø11.11] THRU
4 PL
8.50 [215.90]
9.75 [247.65]
10.25 [260.35]
9.00 [228.60]
8.38 [212.73]
3.00 [76.20]
2.50 [63.50]
11.00 [279.40]
Figure 27: NEMA 7 Enclosure Mounting Dimensions
7.5.4 Temperature Control in R4/R7 Enclosures
R4 and R7 enclosures may be supplied with the temperature control option. Typically this option
is installed in an effort to minimize diurnal changes in outdoor installations, or when the sensor
must be kept at an elevated temperature in order to minimize condensation.
NOTE: The customer must supply the electrical power (110/220 VAC, 150 Watts) for this
option.
For most applications, the sensor and electronics are maintained at a temperature of 65-70
degrees F. The temperature controller, located in the R4 or R7 enclosure, is set at the factory and
typically requires no adjustment unless components are changed or application conditions
require higher temperatures. In the event that the enclosure temperature must be adjusted, follow
the steps below.
1) Obtain a temperature measurement device capable of measuring the desired operating
temperature to an accuracy of +/- 2 degrees F.