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EMERSON KJ3225X1-BA2 RTD / Resistance Input Card

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EMERSON / DeltaV

KJ3225X1-BA2

RTD / Resistance
Input Card

DeltaV Series 2
Low-level temperature
and resistance measurement

Pluggable I/O architecture

CHANNELS 8 RTD / resistance inputs	INPUT LEVEL <100 mV Low-level DC inputs
LOCAL BUS POWER 12 VDC / 160 mA Card power requirement for DeltaV operation

Eight channels are arranged as two groups of four channels, providing a compact architecture for temperature and resistance measurement within the DeltaV I/O system.

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Product Details

EMERSON / DELTAV

DELTAV S-SERIES • TRADITIONAL I/O

KJ3225X1-BA2

RTD / Resistance Input Card

The KJ3225X1-BA2 is an Emerson DeltaV S-Series RTD / Resistance Input Card designed for low-level DC measurement within the DeltaV I/O architecture. Its eight input channels are arranged as two groups of four channels, providing a dedicated interface for RTD and resistance measurement applications.

CHANNEL ARCHITECTURE

8 INPUTS

2 groups × 4 channels

LOCALBUS

12 VDC

160 mA

AMBIENT RANGE

-40°C

to +70°C

S-SERIES

APPLICATION FOCUS

Temperature & Resistance

RTD measurement

Resistance measurement

Eight low-level DC input channels

Separate terminal-block connection

SIGNAL ARCHITECTURE

Designed Around Low-Level Measurement

Eight-Channel Input Structure

The eight KJ3225X1-BA2 input channels are divided into two groups of four channels: channels 1–4 and channels 5–8. Field wiring is connected through a separate terminal block assembly that mates with the carrier arrangement.

Keyed Hardware Interface

Emerson specifies a rotary keying system for the I/O card and terminal block. For KJ3225X1-BA2, the terminal-block key position is C3, helping prevent an incorrect card-to-terminal-block combination after installation.

KJ / S-SERIES COMPARISON

Same-Family Models — Compare Before Replacement

Different KJ-series cards serve different signal types and system functions. Family relationship does not mean direct interchangeability.

MODEL	SIGNAL / FUNCTION	KEY DIFFERENCE	WHEN THE DISTINCTION MATTERS
KJ3225X1-BA2	RTD / Resistance Input	8 low-level DC inputs; C3 key	Intended for RTD and resistance measurement rather than current-loop or thermocouple input.
KJ3224X1-BK1	Thermocouple / mV Input	Designed for thermocouple and millivolt signals	Relevant when the field sensor produces a thermocouple or mV signal rather than an RTD/resistance signal.
KJ3222X1-BK1	8-Channel 4–20 mA HART AI	Current-loop input with HART capability	Relevant for conventional 4–20 mA/HART transmitters, not passive RTD/resistance measurement.
KJ3223X1-BK1	16-Channel 4–20 mA HART AI	Higher channel density for current-loop signals	The key distinction is both signal type and channel density; it is not an RTD-card substitute.
KJ3245X1-BK1	AS-Interface Card	Network interface rather than analog sensor input	Used where an AS-Interface field network is required; it has a different role from the KJ3225 input card.

Why KJ3225X1-BA2 stands apart

The main advantage of this model within the comparison is its dedicated RTD / resistance measurement role. Its eight low-level DC inputs are organized specifically for this measurement class, while other KJ-series cards address thermocouple/mV signals, 4–20 mA/HART loops, or field-network interfaces. This distinction is important when matching an existing field sensor, terminal-block key position and DeltaV I/O configuration.

01 / SIGNAL

Confirm Sensor Type

Confirm that the existing field device requires RTD or resistance measurement before selecting KJ3225X1-BA2.

02 / KEYING

Check C3 Position

The KJ3225X1-BA2 uses terminal-block key position C3. Matching the card and terminal block prevents an incorrect hardware pairing.

03 / ENVIRONMENT

-40°C to +70°C

Confirm the installation environment remains within the specified operating range and other applicable environmental limits.

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Need KJ3225X1-BA2?

Confirm model, terminal-block arrangement and application requirements with our sales team.

SALES MANAGER
Miya zheng

EMAIL
sales@amikon.cn

PHONE / WHATSAPP
86-18020776792

PURCHASING & REPLACEMENT CHECK

KJ3225X1-BA2 FAQ

Can KJ3225X1-BA2 replace another KJ-series analog input card? Not by family name alone. KJ3225X1-BA2 is specifically an RTD / resistance input card. A replacement must match the required field signal type, terminal-block arrangement and hardware keying. A 4–20 mA/HART or thermocouple/mV card belongs to a different input function.		What should be checked before ordering KJ3225X1-BA2? Check the complete part number, the RTD/resistance application, the eight-channel requirement, terminal-block key position C3 and the existing DeltaV S-Series hardware arrangement. These details are more useful for replacement matching than the model family name alone.
Does KJ3225X1-BA2 have the same function as KJ3224X1-BK1? No. Both belong to the DeltaV S-Series I/O family, but their signal functions differ. KJ3225X1-BA2 is for RTD/resistance input, while KJ3224X1-BK1 is associated with thermocouple/mV input. The field sensor type therefore determines which card is appropriate.		Why does the C3 key position matter for KJ3225X1-BA2? Emerson uses rotary keying to establish compatibility between I/O cards and terminal blocks. KJ3225X1-BA2 is specified with C3 key positioning, so the installed terminal-block arrangement should be checked rather than assuming that another KJ-series terminal block is interchangeable.
Is KJ3225X1-BA2 suitable for an RTD replacement in a harsh industrial environment? The specified ambient operating range is -40°C to +70°C, with 5–95% non-condensing relative humidity and ISA-S71.04 Class G3 airborne-contaminant classification stated for the card. The installation must still remain within all applicable environmental and hazardous-area requirements.

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RETURN POLICY

R / R

Please contact us within 7 days if you have any question after you receiving the items.

The returned items has to be in its original condition, specific reason for the return, we will issue a return or replacement for your order after we received the returns.

The buyer is responsible for all the shipping cost incurred.

ADDITIONAL INDUSTRIAL PARTS

RECOMMENDED MODELS

VE4022	A6210	3500/25	AAI543-S53	KJ3245X1-BK1
DR1900	IC695CPE330	KC3010X1-BK1	A6110	VE5137
PHC805	2198-P070	MTL831C	SE4006P2	EC401-50
3500/40	AAI841-S50	3HAC044841-002	VE4013S2B1	SENSION5
KC3030X1-BK2	A6220	HQ440D	1C31203G01	TL2360
KC3040X1-BA1	A6312	DR300	KJ3245X1-BK1	VE4002S2T2B8
3500/15	PHC281	A6370D	CE5137	1C31113G05
133292-01	SENSION1	A6500	VE5126	ISC40S-GR-T1-03
3500/22M	A6210	HQ40D	VE4022	SC25V-ALP25-225
138607-01	PHC10101	A6220	SE4006P2	VE4013S2B1
KC3040X1-BE1	DR1900	3HAC048293-001	A6312	VE5137
3HAC043073-003	A6110	HQ40D	1C31203G01	EC401-50

KJ3225X1-BA2 · RTD / Resistance Input · DeltaV M-Series / Series 2

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