User Navigation; Relay Setup - Hach Lange Relay Module Manual Del Usuario

Table 1 Terminal assignments
Terminal Designation
1 Relay A (normally closed contacts)
2 Relay A (common)
3 Relay A (normally opened contacts)
4 Relay B (normally closed contacts)
5 Relay B (common)
6 Relay B (normally opened contacts)
7 Relay C (normally closed contacts)
8 Relay C (common)
9 Relay C (normally opened contacts)
10 Relay D (normally closed contacts)
11 Relay D (common)
12 Relay D (normally opened contacts)
After the relay installation, install the access covers and then apply
power to the analyzer.
Operation

User navigation

Refer to the analyzer operations manual for keypad description and
navigation information.

Relay setup

1. Select SETUP SYSTEM>SETUP OUTPUTS>RELAY SETUP.
2. Select the relay.
10 English
3. Select an option.
Option Description
ACTIVATION The menu list items change with the selected function.
Refer to Relay activation options
information.
SELECT Selects the output. Options: None (if the relay is not
SOURCE configured), the analyzer name or calculation (if a
calculation formula has been configured). Refer to the
operations manual.
SET FUNCTION Selects a function. ALARM—The relay starts when the
upper or lower alarm value is triggered. FEEDER
CONTROL—The relay shows if a process value is larger
or falls below a setpoint. EVENT CONTROL—The relay
toggles if a process value reaches an upper or lower
limit. SCHEDULER—The relay switches at certain times
independently of any process value. WARNING—The
relay shows warning and error conditions in probes.
SET TRANSFER Selects active or inactive.
FAIL SAFE Selects yes or no.
Relay activation options
1. Select SETUP SYSTEM>SETUP OUTPUTS>RELAY SETUP.
2. Select the applicable relay.
3. Select ALARM in the FUNCTION menu and then select the
applicable options in the ACTIVATION menu.
Option Description
LOW ALARM Sets the value to set the relay to on in response to the
decreasing measured value. For example, if the low alarm
is set for 1.0 and the measured value drops to 0.9, the
relay starts.
HIGH ALARM Sets the value to set the relay to on in response to the
increasing measured value. For example, if the high alarm
is set for 1.0 and the measured value increases to 1.1, the
relay starts.
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