Simpson Electric H340 Display and Keypad Controls, Installation and Panel Cutout, Display Control

2.DISPLAY AND KEYPAD CONTROLS

1.Activated set point indicators (4)

2.4-button Keypad

3.Units Window

4.Numeric and message

Figure 2-1

3.INSTALLATION AND PANEL CUTOUT

3.56	1.77"
	45mm
90.7mm
	3.62"
	92mm

seconds the alarm will trip and remain in alarm until the display drops below the setpoint for at least 2.5 seconds

9.1.3Latch

When choosing Ltch, the relay output will latch immediately after crossing the setpoint. The unit can then only be unlatched with a front panel reset or a reset command from the RS-485 port.

NOTE: If the display is still beyond the setpoint threshold, the reset will have no effect and the unit will remain latched.

9.1.4Alarm

The Alr mode allows choice between High, Low, or Off. The High Alarm means that the display value must be greater or equal to the setpoint to go into Alarm. The Low Alarm means that the display value must be less than or equal to the setpoint to into alarm The Off Alarm means that all features of this setpoint is disabled. No action will occur when display crosses a setpoint and the relays will revert to a normally de-energized state.

When selecting St (State) from the menu, the display will alternate between Stand the current setting.

To edit the setting press RESETENTER . Otherwise press T to move to the next choice.

If choosing ND (Normally De-energized) the relay will turn “on” the alarm con- dition. This is a typical configuration. The one and two-relay outputs will act as abeled; the normally closed contact will be closed until an alarm condition occurs, and the opposite is true for the normally open connection. The four- relay output only has the choice of normally open.

0.52"

13.2mm

3.93"

99.8mm

2.04"

51.8mm

3.24"

82.3mm

1.76"

44.7mm

Engineering Label

If choosing NE (Normally Energized) the relay will turn on at power up and remain on until in an alarm condition. This mode can be used to create a fail- safe condition or reverse the action of the four-relay configuration. In the fail- safe example, the relay output would be wired to protect some device during an alarm condition. During a power failure, the relay would be in the same position as though it were in alarm thus protecting a device that may be on a separate and possible active circuit.

9.2Display Control

The next item that will appear in the menu is Dctl (Display Control). If this is

Figure 4-1. Installation and Panel Cutout

3.1Mounting Requirements

The Hawk 3 Advanced Digital Controller 1/8 DIN counters require a panel cutout of 1.77” (45mm) high be 3.62” (92mm) wide. To install the counter into the panel cutout, remove the clips from the side of the meter. Slide the meter through the panel cutout, then slide the mounting clips back on the meter. Press evenly to ensure a proper fit.

the item to be edited press RESETENTER , otherwise press the down arrow T to move to the next choice.

The display degrees, Deg, will allow you to select either °F or °C for the tem- perature indication. There is no need to change this value if you prefer the default °C indication.

The display refresh, frsh, will slow the numbers of updates to the display. This setting ranges from as fast as 480 updates per minute (8 updates per second) to as slow as 1 update per minute.

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