Teledyne 4220, Installation And Operation Manual, Page: 21 / 198

4220 Flow Meter
Section 1 Introduction
1-7
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
Switches 24-key, four column matrix. Programs flow meter through a series of
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
Sonde 9-pin Male M/S
(Custom) Connects flow meter to an Isco 674 Rain Gauge or YSI 600
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)
Analog Output
(optional)
5-pin male M/S
6-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.
Provides analog data output from the flow meter to external,
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.