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D-Guard² Instruction Manual
Step 3. Connect the D-Guard² as shown. The DC supply voltage range is 13 - 28 V.
CAUTION: The outside diameter of the cable must be between 10 mm and 14 mm. Use a
twin core shielded cable. Make sure the cable is sealed by the M20 cable gland to prevent
moisture ingress.
CAUTION: You must use a circular cross-section cable. Non-circular cross-section cables can
leak between the sheath and the cable gland
13 Response Test
The D-Guard² has been calibrated before dispatch.
CAUTION: The D-Guard² must be response tested when it is first commissioned and as
necessary during use.
Step 1. Apply gas to the D-Guard². See
Step 2. Apply the gas for at least 3 minutes or until the indicated concentration is
within ± 10% of the applied gas concentration. Gas flow rate must be greater than or
equal to 1 L / min.
CAUTION: You must recalibrate the D-Guard² if its results do not agree with this
specification. See
section
11
.
section
15.
15.2.
Item Number 201018
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