Mode Selector Switch And Indicators - Valco Instruments Co. Inc. 340-0X Instruction Manual

OVEN TEMPERATURE
UPPER LIMIT
CHAMBER
FLOWMETER
TEMPERATURE
DISPLAY
PERMEATION
CHAMBER
TEMPERATURE
EQUILIBRIUM
INDICATOR
.15
.10
30° 120°
SHUTDOWN
.05
CHAMBER
FLOW
PERMEATION CHAMBER
TEMPERATURE °C
LOCK
PNL TMP
SET
MAIN MAIN
POWER POWER
INDICATOR SWITCH
Figure 4: Model 340 front panel controls and indicators

MODE SELECTOR switch and indicators

The three position switch selects the calibration mode. LEDs indicate the current
mode.
• ZERO: The permeation chamber output is dumped out the chamber vent;
only the dilution stream exits through the stream outlet to the analyzer.
• SPAN: The permeation chamber output and the dilution stream are mixed
and fed through the stream outlet to the analyzer.
• REMOTE: Unit defaults to the ZERO mode. A remote contact closure to rear
panel terminals C and V1 will switch the unit to the SPAN mode.
Metronics Inc.
DYNACALIBRATOR
MODEL 340
ZERO SPAN REMOTE
MODE CONTROL
MAIN HEATER
6A 4A DILUTION
FLOW
CONTROL
MAIN HEATER HEATER
CIRCUIT CIRCUIT POWER
BREAKER BREAKER SWITCH
Getting Started
MODE
INDICATORS
MODE
SELECTOR
DILUTION
FLOWMETER
DILUTION
FLOW CONTROL
VALVE
HEATER
INDICATOR
13