Teledyne M200E and M400E Status LEDs & Watch Dog Circuitry, Watchdog Indicator D1, D1 RED, Rev B3

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2.3. Status LEDs & Watch Dog Circuitry

Addendum to E-Series Operator Manuals

Relay PCA 04523

2.3. Status LEDs & Watch Dog Circuitry

Like the previous version, the status LED’s on the Relay PCA 04523 includes thirteen LEDs that indicate the status of the analyzer’s heaters, valves and other general operating conditions. Since the functions represented by these LED differs from model to model, check your M100E/M200E/M400E operator’s manual for their exact assignments (this can normally be found in the section on Electronic Theory of Operation).

While the functional assignments for the LED’s of each model have remained unchanged their location on the PCA is different. See Figure 2-3 of this addendum for the new locations.

2.3.1. Watchdog Indicator (D1)

The most important of the status LED’s on the relay board is the red I1C Bus watch-dog LED. It is controlled directly analyzer’s CPU over the I2C bus. Special circuitry on the relay PCA watches the status of D1. Should this LED ever stay ON or OFF for 30 seconds, indicating that the CPU or I2C bus has stopped functioning, this Watchdog Circuit automatically shuts all valves and turn off all heaters and lamps.

	D7 (Green)
D4 (Yellow)	D8 (Green)
D3 (Yellow)	D9 (Green)
D2 (Yellow)	D10 (Green)

D5(Yellow)

D6 (Yellow)

D11 (Green)

D12 (Green)

D13 (Green)

D14 (Green)

D15 (Green)

D16 (Green)

D1 (RED)

Watchdog

Indicator

Figure 2-6: Status LED Locations – Relay PCA 04523

10	05118 Rev B3

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Contents TELEDYNE INSTRUMENTS ADVANCED POLLUTION INSTRUMENTATION T-API 9480 CARROLL PARK DRIVE SAN DIEGO, CA USA Toll-free Phone Phone FaxEmail api-sales@teledyne.com Relay PCA P/NTHIS PAGE INTENTIONALLY BLANK SAFETY MESSAGES subassemblies while the unit is under powerContacting Teledyne Instruments’ Customer Service Department at or Relay PCAAddendum to E-Series Operator Manuals LIST OF FIGURES TABLE OF CONTENTSLIST OF TABLES THIS PAGE INTENTIONALLY BLANK 1. INTRODUCTION Table 1-1 List of Analyzers Using New Relay PCA P/N045231.1. What’s the Same 1.3. Relay PCA Location and Layout 1.2. What’s DifferentFigure 1-1 Relay PCA Layout P/N04523 Figure 1-3 Relay PCA P/N 045230100 with Safety Shield In Place 1.3.1. Version1.3.2. Version Figure 1-2 Relay PCA P/N 045230200 with AC Relay Retainer In PlaceUSER NOTES 2. OPERATION AND CONFIGURATION 2.1. Power Distribution2.1.1. AC Power Configuration Figure 2-1 Power Distribution Block DiagramFigure 2-2 Location of AC power Configuration Jumpers IZS Permeation Tube Heater and O2 Sensor Connection optional2.1.1.1. AC configuration - Internal Pump JP7 AC Power Configuration for Internal Pumps JP7Figure 2-3 Pump AC Power Jumpers JP7 110 VAC /115 VAC2.1.1.2. AC Configuration - Standard Heaters JP2 Table 2-2 Power Configuration for Standard AC Heaters JP2Figure 2-4 Typical Set Up of AC Heater Jumper Set JP2 1 to2.1.1.3. AC Configuration -Heaters for Option Packages JP6 Table 2-3 Power Configuration for Optional AC Heaters JP6Figure 2-5 Typical Set Up of AC Heater Jumper Set JP2 2.2. Valve Control2.3.1. Watchdog Indicator D1 2.3. Status LEDs & Watch Dog CircuitryD1 RED Figure 2-6 Status LED Locations - Relay PCAFigure 2-7 Heater Control Loop Block Diagram 2.4. Heater Control LoopThemocouples MOTHER BOARD2.4.1. Thermocouple Inputs and Configuration Jumper JP5 Table 2-4 Thermocouple Configuration Jumper JP5 Pin-OutsType J Compensation Type K CompensationFigure 2-8 Thermocouple Configuration Jumper JP5 Pin-Outs INPUT TC1 J15Output Scale Selector 7 Type J Compensation 82.5. DC Power Supply Test Points DC Power Test Point and Wiring Color CodeTable 2-6 DC Power Supply Acceptable Levels FROM3. TROUBLE SHOOTING AND REPAIR 3.1. Removing / Replacing the Relay PCA from the InstrumentMounting Screws Figure 3-1 Relay PCA 04523 Mounting Screw Locations4. SCHEMATICS AND SPARE PARTS FOR RELAY PCA P/N Table 4-2 List of Included Electronic SchematicsList of Spare Parts DOCUMENT #