Walchem WCT400 Instruction Manual download pdf (Page 5)

2.0 SPECIFICATIONS

2.1 Measurement Performance

Conductivity Range 0 - 10,000 µS/cm (microSiemens/centimeter)

Conductivity Resolution 1 µS/cm

Conductivity Accuracy 10 - 10,000 µS/cm ±1% of reading

0 - 10 µS/cm ±20% of reading

Temperature Range 32 - 158°F (0 - 70°C)

Temperature Resolution 0.1°C

Temperature Accuracy ± 1% of reading

2.2 Electrical: Input/Output

Input Power

100-240 VAC, 50/60 Hz, 8A

Fuse: 1.0 ampere, 5 x 20 mm

Input Signals

Conductivity electrode 1.0 cell factor, 10K thermistor

Flow Meter (optional) Isolated, dry contact closure required (i.e. relay, ,reed switch)

Flow Switch (optional) Isolated, dry contact closure required (i.e. reed switch)

Outputs

Mechanical Relays Pre-powered on circuit board switching line voltage

6 A (resistive), 1/8 HP

All relays are fused together as one group, total current for this

group must not exceed 6A

4 - 20 mA (optional) Internally powered

Fully isolated

600 Ohm max resistive load

Resolution .001% of span

Accuracy ± 1% of reading

Agency Approvals

Safety UL 61010-1:2012 3rd Ed.

CSA C22.2 No. 61010-1:2012 3rd Ed.

IEC 61010-1:2010 3rd Ed.

EN 61010-1:2010 3rd Ed.

EMC IEC 61326-1:2005

EN 61326-1:2006

Note: For EN61000-4-6, EN61000-4-3 the controller met performance criteria B.

*Class A equipment: Equipment suitable for use in establishments other than domestic, and those directly

connected to a low voltage (100-240 VAC) power supply network which supplies buildings used for

domestic purposes.

2.3 Mechanical

Enclosure Material Polycarbonate

NEMA Rating NEMA 4X

Dimensions 8.5" x 6.5" x 5.5"

Display 2 x 16 character backlit liquid crystal

Operating Ambient Temp 32 – 122°F (0 – 50°C)

Storage Temperature -20 – 180°F (-29 – 80°C)

Graphite electrode pressure rating 150 psi

Stainless steel electrode pressure rating 150 psi

High pressure electrode & flow switch

manifold pressure rating

300 psi

Flow switch manifold pressure rating 150 psi

Flow switch manifold connections ¾" NPTF

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Walchem WCT400 Instruction Manual Page 5

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