Hach WDMP sc, User Manual, Page: 3 / 74

Table of Contents
1 Specifications on page 3
2 General information on page 4
3 Installation on page 9
4 Startup on page 18
5 Operation on page 19
6 Maintenance on page 19
7 Troubleshooting on page 22
8 Replacement parts and accessories on page 22
Section 1 Specifications
Specifications are subject to change without notice. The specifications that follow are for the junction
box (
Table 1 ) and the WDMP sc panel ( Table 2 ). Refer to the instrument user manuals for the
analyzer, controller, turbidimeter and probe sensor specifications.
Table 1 Junction box
Specification Details
Power requirements 100 to 115/230 VAC, 50/60 Hz
Power consumption 90 VA maximum for CL17 analyzer
24 W maximum for all other electronics
Protection class I
Installation category II
Pollution degree 2
Altitude 2000 m (6562 ft) maximum
Fuse 5 x 20 mm, T 1.0 A, 250 V (2x)
Storage temperature –20 to 60 °C (–4 to 140 °F)
Conduit hub ½ NPT
Communications RS485 Modbus
Humidity Maximum relative humidity 80% for temperatures to 31 °C (88 °F), decreasing linearly to
50% relative humidity at 40 °C (104 °F)
Table 2 WDMP sc panel
Specification Details
Dimensions (W x H x D) 81 x 122 x 30.8 cm (32 x 48 x 12.1 in.)
Weight 54.4 kg (120 lb)
Operating temperature 5 to 40 °C (41 to 104 °F)
Sample flow rate 0.4 to 0.6 L/min
Sample pressure 138 to 862 kPa (20 to 125 psi)
Sample temperature 5 to 40 °C (41 to 104 °F)
Sample inlet connection ½-in. OD tube
Sample waste drain connection ¾-in. ID hose barb
Sample waste drain pressure Ambient, free-flowing (atmospheric)
Pressure sensor Stainless steel (17-4 PH), Input: 7–35 VDC; Output: 4–20 mA, 0–1034 kPa
(0–150 psi)
English 3