Campbell CS440, Инструкция по эксплуатации

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CS440 Liquid Level Sensor
2
Notes:
1. Includes Linearity, Repeatability and Pressure Hysteresis at 25
°
C.
2. 0 – 50
°
C, Referenced to 25
°
C.
Specifications subject to change without notice.
3. Installation
3.1 Initial Inspection and Handling Guidelines
Upon receipt of the CS440, inspect the packaging for any signs of shipping
damage and, if found, report the damage to the carrier in accordance with
policy. The contents of the package should also be inspected and a claim filed
if any shipping related damage is discovered.
Care should be taken when opening the package not to damage or cut the cable
jacket. If there is any question about damage having been caused to the cable
jacket, a thorough inspection is prudent.
The model number and pressure range is etched on the housing. Check this
information against the shipping documentation to ensure that the expected
model number and range were received.
Gauge pressure (vented) devices must always have a desiccant tube attached.
New desiccant is blue in color. As the desiccant material absorbs water vapor,
it begins to turn pink, and eventually white when fully expired. Desiccant
tubes should be inspected regularly (i.e., every two months) and historical
information will help to baseline desiccant replacement requirements for a
given application/climate.
Absolute pressure (non-vented) units do not require a desiccant chamber. If
the cable incorporates a vent tube, the vent tube is heat sealed at both ends
prior to shipment and must remain sealed.
Remember that although the CS440 is designed to be a rugged and reliable
device for field use, it is also a highly precise scientific instrument and should
be handled as such. There are no user serviceable parts and any attempt to
disassemble the device will void the warranty.
3.2 Installation Guidelines
The CS440 is designed for water level measurement. Typical applications
include agricultural water level/flow, water wells, lakes, streams and tanks. If
the device is to be installed in a liquid other then water or in contaminated
water, check the compatibility of the wetted materials.
The transducer may be installed in any position but it is calibrated and tested in
the vertical orientation, as it would normally be suspended.
Never suspend the transducer from the connections at the top end of the cable.
When suspending the device, in a well for example, a proper strain relief
should be attached around the cable jacket and properly secured at the well
head.