Teledyne 4220 Controls, Indicators, and Connectors, Controls Settings Function

		4220 Flow Meter
		Section 1 Introduction
	Table 1-1 Controls, Indicators, and Connectors
Controls	Settings	Function
ON/OFF	On - Off	Turns the flow meter on and off. Internal memory is protected with a
		standby battery. See Section 2.
Keypad	Momentary	24-key, four column matrix. Programs flow meter through a series of
	Switches	keystrokes prompted by messages on the display. Certain keys per-
		form specific functions (printing reports or entering program choices
		into memory). Arrow keys move through menus. Number keys enter
		numeric values. See Section 2.
Indicators	Reading	Function
Display	Multi-function	2-line, 40 characters per line, liquid crystal display (LCD). Prompts
		you through program procedure; displays total flow, present flow
		rate, and level. May also display parameter readings, if sensors
		present.
Internal Plotter	Various	Provides hard copy of total flow, level or flow rate variation over
		time; provides sampling information and a printout of the program.
		Prints reports. Generates three different linear data plots. Chart
		characters and plots are generated on plain paper roll with an ink
		ribbon.
Connector	Type	Function
12 VDC	2-pin male M/S	Connects 12 VDC power to flow meter.
Sampler	6-pin male M/S	Connects flow meter to sampler; provides flow pulses to sampler;
		receives sampler bottle number, composite sample, and event mark
		signal.
Submerged Probe	5-pin, female M/S	Connects submerged probe level sensor to flow meter. Also pro-
		vides connection for reference port vent tube.
Rain Gauge/YSI 600	9-pin Male M/S	Connects flow meter to an Isco 674 Rain Gauge or YSI 600
Sonde	(Custom)	Multi-Parameter Sonde. Also provides output to High Low Alarm
		Relay Box.
Interrogator	6-pin female M/S	Provides serial data in/out and power. Can also be used with the
		4-20 mA Output Interface and the 581 Rapid Transfer Device.
Modem (optional)	5-pin male M/S	Connects flow meter to telephone line for remote data transmission.
		This connector will only be present on units that have the optional
		modem installed.
Analog Output	6-pin male M/S	Provides analog data output from the flow meter to external,
(optional)		non-Isco control and recording devices.
Parameter	7-pin female M/S	Connects flow meter to parameter sensor: temperature, pH, or D.O.
		Note that you can only have temperature and one parameter (pH or
		D.O.) at the same time.
		NOTE: The 270 D.O. module is no longer available from Teledyne
		Isco.

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