Instruction manual

2.2 Electrical

Inputs

Input power 100 – 120/220-240 VAC ±10%, 12A, 50/60 Hz Fuse 1.6A, 5 x 20mm

Input signals STANDARD

Water meter Contactor: Isolated dry contact (relay, reed switch or Hall Effect)

0-10 Hz ,50 msec minimum width

Paddlewheel Water Meter: Isolated dry contact (relay, reed switch or Hall Effect)

0-300 Hz ,1.5 msec minimum width

Flow switch: Isolated dry contact (relay, reed switch or Hall Effect)

0-10 Hz ,50 msec minimum width

Input signals OPTIONAL

Digital Inputs (1-4) Isolated dry contact (relay, reed switch or Hall Effect)

0-10 Hz, 50 msec minimum width

Digital Inputs (5-6) Isolated dry contact (relay, reed switch or Hall Effect)

0-300 Hz, 1.5 msec minimum width

Point Level Switch: Isolated dry contact (relay, reed switch or Hall Effect)

Flow Feedback: Isolated dry contact (relay, reed switch or Hall Effect)

Analog Inputs (1-8) 4-20 mA, 2-wire or 3 -wire, internally powered by 24 VDC, 25 ohm input resistance,

1000 ohm maximum load.

Sensor STANDARD (1) Sensor OPTIONAL (3)

Signal (isolated) ±1.5V Signal (isolated)

±1.5V

Temp (isolated) 1K or 10K or 100K Temp (isolated) 1K or 10K or 100K

Outputs

STANDARD

Mechanical relays:

At 115 VAC, 10 amp (resistive), 1/8 HP

At 230 VAC, 6 amp (resistive), 1/8 HP

Bleed, Feed, Bio1 and Bio2 Relays are fused together as one group, total current for this group must not exceed 5.5A

Dispersant, pH and ORP relays are fused together as one group, total current for this group must not exceed 5.5A.

The seven control relays switch line (mains) voltage (one N.O. and one N.C. contact) are provided.

The alarm relay is a dry contact.

Digital: RS232

RS485

OPTIONAL

4-20 mA (1-4): Isolated, 500 ohm max. resistive load, internally powered

Agency Approvals

UL 3111-1

CSA C22,2 No.1010.1-92

CE Safety EN 61010-1

CE EMC EN 61326 Annex A*

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

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

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

buildings used for domestic purposes.