Gems Sensors & Controls 16M, 16 Installation Guide

Form 166Form 166

Form 166

Form 166Form 166

Sheet P/N 10021Sheet P/N 10021

Sheet P/N 10021

Sheet P/N 10021Sheet P/N 10021

RevRev

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®

®®

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General Purpose ControlsGeneral Purpose Controls

General Purpose Controls

General Purpose ControlsGeneral Purpose Controls

Installation and Operation BulletinInstallation and Operation Bulletin

Installation and Operation Bulletin

Installation and Operation BulletinInstallation and Operation Bulletin

Series 16Series 16

Series 16

Series 16Series 16

Rev

RevRev

. F. F

. F

. F. F

This bulletin should be used by experienced personnel as a guide to the installation of Series 16 controls. Selection or
installation of equipment should always be accompanied by competent technical assistance. We encourage you to
contact Gems Sensors Inc. or its local representative if further information is required.

InstallationInstallation

Installation

SpecificationsSpecifications

Specifications

SpecificationsSpecifications

Control DesignControl Design

Control Design

Control DesignControl Design
Contact DesignContact Design

Contact Design

Contact DesignContact Design

and one normally closed (N.C.), non-powered contacts.

Contact RatingsContact Ratings

Contact Ratings

Contact RatingsContact Ratings

@ 120, 240 VAC resistive (150°F), 1/3 H.P. @ 120, 240 VAC
(120°F)

Contact LifeContact Life

Contact Life

Contact LifeContact Life

Electrical: 100,000 operations minimum at rated load.

Supply VSupply V

Supply V

Supply VSupply V

50/60 Hz. 2008/240 Model: 187 Vmin to 255 Vmax. VAC 50/
60 Hz

Supply CurrentSupply Current

Supply Current

Supply CurrentSupply Current
Secondary CircuitSecondary Circuit

Secondary Circuit

Secondary CircuitSecondary Circuit

amp current.

SensitivitySensitivity

Sensitivity

SensitivitySensitivity

mum specific resistance

TT

emperatureemperature

T

emperature

TT

emperatureemperature

TT

erminalserminals

T

erminals

TT

erminalserminals

connections 1/4” space

Time Delays:Time Delays:

Time Delays: Standard H probe, 0.5 seconds on rising level

Time Delays:Time Delays:
ListingListing

Listing

ListingListing

: :

: U.L. recognized, Industrial Motor Control (508)

: :

::

: Open circuit board design

::

::

: SPDT (1 form C): one normally open (N.O.)

::

: :

: 10A @ 120 or 240 VAC resistive (120°F), 1 A

: :

::

: Mechanical: 5 million operations.

::

oltageoltage

::

oltage

: 120, 240 or 24 VAC models: +10% - 15%,

oltageoltage

::

::

: Relay energized 4.4 VA.

::

::

: 12 VAC RMS voltage on probes, 1.5 milli-

::

::

: Models operate from 0 to 1,000,000 Ohm maxi-

::

::

: -40 to 150° F. ambient.

::

::

: Probe connections 3/16” spade: Line and power

::

1. Drill three .187 dia. holes in customer supplied backplate
using stick on template supplied with control. Standard
standoffs are designed for backplate thickness of .062 (1/
16”). Standoffs are available for backplates of .125 (1/8”)
nominal thickness. If retrofit plate standoffs are used, drill
three .250 dia. holes in proper location.

2. Install three standoffs onto backplate. Install circuit board
onto standoffs by pushing down on circuit board at outer
edges of all four corners. Use both hands to slide board onto
standoffs until standoffs lock.
circuit board during installation. Do not push down on
transformer or relays during installation. See sketch for
proper installation. Install control in appropriate enclosure.

3. Wire control per diagram, following N.E.C. and local
codes. Use appropriately sized spade terminals.

We have four different types of standoffs,
designed to connect cirucit boards to panels

InstallationInstallation

CAUTION:CAUTION:

CAUTION: Do not overflex

CAUTION:CAUTION:

StandoffsStandoffs

Standoffs

StandoffsStandoffs

Top View

1-11-1

1-1

1-11-1

DimensionsDimensions

Dimensions

DimensionsDimensions

Backplate Supplied

à

à

à

2-1/2” (6.35 cm)

1-5/8” (4.13 cm)

à

2-3/16” (5.55 cm)

à

1-3/4” (4.45 cm)

3/16” (.48 cm) REF

Transformer

à

à

à

à

à

1-1/16”

à

(2.70 cm) REF

by Others

à

1/2”

(1.27 cm)

à

NotesNotes

Notes

NotesNotes

à

1” (2.54 cm)

à

Mounting template supplied with all open circuit board controls.

If panel mount stand-off is to be used, thru-holes to be drilled in
back plate should be .187” Dia.

If retrofit stand-off is to be used, thru-holes to be drilled in back
plate should be .250” Dia.

à

1-7/8” (4.76 cm)

Side View

1/16”

1/16”

Standoff

à

Standoff

SensitivitySensitivity

Sensitivity

SensitivitySensitivity
CharacterCharacter

Character

CharacterCharacter

à

**

* Based on type MTW or THHN wire, #14 or #16 AWG

**

1/8”

Bottom View

1/8”

Sensitivities vs MaximumSensitivities vs Maximum

Sensitivities vs Maximum

Sensitivities vs MaximumSensitivities vs Maximum

A or K

B or L
C or M
D or N

E or P

F or R
G or S

Retrofit

Standoff

Probe Wire DistanceProbe Wire Distance

Probe Wire Distance

Probe Wire DistanceProbe Wire Distance

SensitivitySensitivity

Sensitivity

SensitivitySensitivity

(K Ohms)(K Ohms)

(K Ohms)

(K Ohms)(K Ohms)

4.7
10
26
50

100
470

1,000

Circuit Board

Standoff

*

DistanceDistance

Distance

DistanceDistance

(Ft)(Ft)

(Ft)

(Ft)(Ft)

10,000

5,700
2,200
1,075

Screw Mount

Standoff

570
270

38

WW

iring Diagramiring Diagram

W

iring Diagram

WW

iring Diagramiring Diagram

L1L1

L1

L1L1

GG

G

GG

Reference ProbeReference Probe

Reference Probe

Reference ProbeReference Probe

A. C. SupplyA. C. Supply

A. C. Supply

A. C. SupplyA. C. Supply

TT

ransformerransformer

T

ransformer

TT

ransformerransformer

L2L2

L2

L2L2

HH

H

HH

LL

L

LL

NC

C

NO

OperationOperation

Operation

OperationOperation

For single level service, use
“H” and “G” connections.

High ProbeHigh Probe

High Probe

High ProbeHigh Probe

Low ProbeLow Probe

Low Probe

Low ProbeLow Probe

If metallic, the tank may
be used in place of the
reference probe.

Direct Mode- Single Level ServiceDirect Mode- Single Level Service

Direct Mode- Single Level Service

Direct Mode- Single Level ServiceDirect Mode- Single Level Service

::

: When the liquid rises to the electrode on terminal H, the control energizes, changing state of

::

the load contacts. (LED will be lit) The control remains energized until the liquid level recedes below electrode on terminal H. The
control then de-energizes, (LED will not be lit) returning load to original state.

Inverse Mode- Single Level ServiceInverse Mode- Single Level Service

Inverse Mode- Single Level Service

Inverse Mode- Single Level ServiceInverse Mode- Single Level Service

::

: Control energizes with power, changing state of the load contacts. (LED will be lit) When the

::

liquid rises to the electrode on terminal H, the control de-energizes, returning the load contacts to shelf state. (LED will not be lit)
The control remains de-energized until liquid level recedes below the electrode connected to terminal H. The control then
energizes.

Direct Mode- Differential ServiceDirect Mode- Differential Service

Direct Mode- Differential Service

Direct Mode- Differential ServiceDirect Mode- Differential Service

::

: When the liquid rises to the electrode on terminal H, the control energizes, changing state of the

::

load contacts. (LED will be lit) The control remains energized until the liquid level recedes below electrode on terminal L. The
control then de-energizes, (LED will not be lit) returning the load contacts to original state.

Inverse Mode- Differential ServiceInverse Mode- Differential Service

Inverse Mode- Differential Service

Inverse Mode- Differential ServiceInverse Mode- Differential Service

::

: Control energizes with power, (LED will be lit) changing state of the load contacts. When the

::

liquid rises to the electrode on terminal H, the control de-energizes, returning load contacts to shelf state. (LED will not be lit) The
control remains de-energized until the liquid level recedes below the electrode on terminal L. The control then energizes.

OptionalOptional

Optional

OptionalOptional

Time DelaysTime Delays

Time Delays

Time DelaysTime Delays

::

: With time delay on increasing level, the liquid must be in contact with the short electrode for the full duration of the

::

time delay before control will operate. With delay on decreasing level, the liquid must be below long electrode for the full
duration of the time delay before control will operate. In single level service, terminals H and L must be jumpered together to
achieve time delays on both increasing and decreasing levels or just decreasing level.

16 X-X-X-X-XX-XX16 X-X-X-X-XX-XX

16 X-X-X-X-XX-XX

16 X-X-X-X-XX-XX16 X-X-X-X-XX-XX

Time Delay: Time Delay:

Time Delay: (decreasing level) 1-20 sec.

Time Delay: Time Delay:
Time Delay:Time Delay:

Time Delay: (increasing level) 1-20 sec.

Time Delay:Time Delay:
Enclosure:Enclosure:

Enclosure: 0-none, 1-NEMA 1, 4-NEMA 4, 7-NEMA 7, 12-NEMA 12

Enclosure:Enclosure:
Standoff Style:Standoff Style:

Standoff Style: A- 1/16” panel, B- 1/8” panel,C-Screw mount, D- Retrofit plate

Standoff Style:Standoff Style:
Supply VSupply V

Supply V

Supply VSupply V
Mode/Sensitivity: Direct Mode/Sensitivity: Direct

Mode/Sensitivity: Direct A- 4.7K, B- 10K, C- 26K, D- 50K, E- 100K, F- 470K, G- 1M

Mode/Sensitivity: Direct Mode/Sensitivity: Direct

Inverse Inverse

Inverse K- 4.7K, L- 10K, M- 26K, N- 50K, P- 100K, R- 470K, S- 1M

Inverse Inverse

oltage:oltage:

oltage: 1- 120 VAC, 2- 240 VAC, 3- 24 VAC, 8- 208/240 VAC

oltage:oltage:

**

*

**

**

*187 Vmin to 255 Vmax VAC

**

Gems Sensors Inc.
One Cowles Road
Plainville, CT 06062-1198
Tel: [phone]
Fax: [phone]